Insulator rack



July 8, 1930. c HUSTED 1,770,138

INSULATOR RACK Original Filed Dec. 3, 1923 Patented July 8, 1930 PATENT OFFICE NORRIS C. HUS'IED, OF NILES, OHIO INSULATOR RACK Original application filed December 3, 1923, Serial No. 678,124. Divided and this application filed July 27, 1927. Serial No. 208,753.

This invention relates to insulator supports and particularly to the type known as secondary racks, and this application is a division of my previously filed-application, Serial No.

678,124 of Dec. 3, 1923.

An object of this invention is to provide a device of the type set forth having a simple, rugged construction which will be relatively cheap to manufacture and easy to assemble.

A further object is to provide an improved construction of insulator supporting arm for use on racks of the type set forth.

These and other objects which will be apparent to those skilled in this particular art are accomplished by means of the invention illustrated in the accompanying drawings in which Figure 1 is a view in side elevation of a rack constructed in accordance with one embodiment of this invention, the lower portion thereof being shown in section. Fig. 2 is a front elevation partially in section of the secondary rack illustrated in Fig. 1. Fig. 3 is a plan view of a blank from which the insulator supporting arms shown in sections 1 and 2 are formed and Fig. 4 is a sectional view on the line 47 1 of Fig. 2.

As illustrated, the rack includes a base 5 made up of separate angle sections which are arranged in reverse, parallel and spaced relation so that the laterally extending flanges 6 and 7 thereof lie in the same plane, and the flanges 8 of'the base members project forwardly so as to form a channel 9 which extends longitudinally of the base and is flanked by the legs 6 and 7.

Insulator supporting arms 10, three of which are shown, extend outwardly and forwardly from the base. In cross section these supporting arms each resemble an inverted U channel with a well rounded top surface 12.

Each arm is provided with downwardly extending strain resisting flanges 11 which project rearwardly beyond the central top section 12, and the end of each flange forms a ver- 4 tically extending elongated bearing surface 13 which abuts the forward face of the associated flange 6 or 7. The rearwardly projecting legs 11 of the support arms straddle the forwardly projecting flanges 8 of the base members and are secured thereto by any desired form of fastening means such, for example, as rivets 14. The top 12 of each arm is provided with an extension 15 which projects inwardly between the flanges 8 and which, as illustrated, is curved downwardly about the associated supporting'rivets 14 so as to form a spacer for the base members. The extension 15' on each arm co-operates with the associated, rearwardly extending sides 11 so as to form base receiving slots 16 within which the forwardly projecting flanges 8 are received. The outwardly projecting flanges 6 and 7 of the base are pro vided with the usual elongated slots 17 for securing the rack to supports where through bolts cannot be used. The outer end of each support arm is perforated for receiving the usual insulator rod 18 on which the insulators are threaded so as to be held in position on the associated support arm.

The support arms 10 may be manufactured in any desired manner, but are preferably pressed from sheet metal. The original blank (see Fig. 3) is provided with the slots 16 in one end thereof so as to form a tongue 19 and wings 20. The blank is then pressed into the shape of the finished arm by bending the side wings downwardly to form the legs 11, and the tongue 19 is preferably curved downwardly so as to co-operate with the vertically extending legs to provide the flange receiving slot 16 and to act as a spacer for the base members.

I claim In a secondary rack, two angle sections arranged in reverse,parallel and spaced relation to form a base having a flat back and a longitudinal channel flanked on opposite sides by the adjacent forwardly projecting legs of said sections, support arms extending outwardly from the base and arranged so that their inner ends straddle said forwardly projecting legs and means formed on said arms so as to constitute spacers between said forwardly projecting legs.

In testimony whereof, I have hereunto subscribed my name this 26th day of July, 1927.

NORRIS C. HUSTED. 

